Protection device for battery pack of new energy automobile

Abstract

The utility model provides a protection device of a new energy automobile battery pack. The protection device comprises a protection shell; the supporting plate is fixedly mounted in the protective shell, and a clamping assembly for fixing the battery pack is arranged on the supporting plate; the sealing cover is arranged at the top of the protective shell; the two limiting blocks are symmetrically and fixedly mounted at the top of the sealing cover and are in a shape like a Chinese character'fang ', and the inner bottom walls of the limiting blocks are obliquely arranged. The sealing cover is installed on the top of the protective shell, then the movable block is rotated to make the abutting wheel make contact with the sealing cover, meanwhile, the rotating screw rod is rotated to drive the movable frame to move in the guide shell, the abutting wheel enters the limiting block and tightly abuts against the limiting block, and therefore downward pressure can be applied to the sealing cover and the protective shell is fixed; on the contrary, the sealing cover can be disassembled by reversely rotating the rotating screw rod and rotating the movable block, so that the effect of quickly disassembling and assembling the sealing cover and the protective shell is achieved, the operation steps are simplified, and the assembling efficiency and convenience of the battery pack are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery pack technology, specifically to a protection device for a new energy vehicle battery pack. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and hydrogen engine vehicles.

[0003] A known authorized patent with application number CN202221896189.3 discloses a honeycomb protection device for a new energy vehicle battery pack with easy installation function. Its background technology addresses the problem that "existing new energy vehicle battery packs are typically fixed to the chassis and mounting package using bolts during installation. To prevent the mounting package from falling off, multiple sets of bolts are used for fixing, which is cumbersome and inconvenient." The technical solution to this problem is: "It includes a honeycomb battery pack and an upper packaging shell located at the top of the honeycomb battery pack. A lower packaging shell is located at the bottom of the honeycomb battery pack. A through hole B is opened through the outer surface of the lower packaging shell. An inner ring B is installed inside the through hole B, and an upper insertion rod is installed at the top of the inner ring B."

[0004] However, the following problems were found in the implementation of the relevant technology: Although the provided technical solution has achieved the effect of conveniently completing the installation of the battery pack, upper packaging shell and lower packaging shell, it is inconvenient to easily and quickly disassemble and assemble the packaging shell during use. The installation structure of the packaging shell is relatively complicated, and multiple operation steps are required to assemble the battery pack, which can easily increase the assembly time of the battery pack, thereby reducing the assembly efficiency and convenience of the battery pack. Utility Model Content

[0005] This utility model proposes a protection device for new energy vehicle battery packs, which solves the problem of convenient and quick disassembly and assembly of the packaging shell in related technologies.

[0006] The technical solution of this utility model is as follows: A protection device for a new energy vehicle battery pack, comprising: a protective shell;

[0007] A support plate is fixedly installed inside the protective housing, and the support plate is provided with a clamping assembly for fixing the battery pack;

[0008] A cover located on top of the protective casing;

[0009] Two U-shaped limiting blocks are symmetrically fixedly installed on the top of the cover, and the inner bottom wall of the limiting blocks is inclined.

[0010] Symmetrical movable blocks connected to both sides of the protective shell;

[0011] A rotating screw that is rotatably connected to the movable block;

[0012] Two guide shells are fixedly installed on one side of the movable block;

[0013] A movable frame that is threaded to the surface of a rotating screw and slides with a guide housing;

[0014] And a contact wheel that is rotatably connected to the end of the movable frame and cooperates with the limiting block.

[0015] Preferably, the clamping assembly includes a four-sided clamping mechanism disposed within the protective housing for limiting the battery pack, and a shock-absorbing mechanism disposed on the four-sided clamping mechanism for buffering and reducing the shock of the battery pack.

[0016] Preferably, the four-sided clamping mechanism includes a bidirectional screw 1 rotatably connected between the front and rear inner walls of the protective shell, two clamping plates 1 symmetrically threaded to the surface of the bidirectional screw 1 and slidably connected to the support plate, a bidirectional screw 2 rotatably connected between the left and right inner walls of the protective shell and located below the bidirectional screw 1, and two clamping plates 2 symmetrically threaded to the surface of the bidirectional screw 2 and slidably connected to the support plate, wherein one end of both the bidirectional screw 1 and the bidirectional screw 2 extends out of the protective shell.

[0017] Preferably, the damping mechanism includes multiple sets of spring dampers fixedly installed on one side of clamping plate one and clamping plate two, and a damping plate fixedly installed on one end of the spring dampers, with a rubber pad installed on one side of the damping plate.

[0018] Preferably, the top of the protective shell is provided with a positioning sealing groove, and the bottom of the cover is fixedly installed with a positioning sealing ring that engages with the positioning sealing groove.

[0019] Preferably, two sets of spring shock absorbers are symmetrically fixedly installed at the bottom of the cover, and a pressure plate is fixedly connected to the bottom end of the spring shock absorber.

[0020] Preferably, a plurality of heat-conducting copper plates are installed through the top of the cover, and a housing corresponding to the heat-conducting copper plates is fixedly installed on the top of the cover. A cooling fan is fixedly installed on one side of the housing, and a ventilation hole is provided on the other side of the housing.

[0021] The working principle and beneficial effects of this utility model are as follows:

[0022] By installing the cover on top of the protective housing, rotating the movable block causes the contact wheel to contact the cover. Simultaneously, rotating the screw drives the moving frame to move within the guide housing, allowing the contact wheel to enter the limiting block and make tight contact with it. This applies downward pressure to the cover and secures the protective housing. Conversely, reversing the screw and rotating the movable block removes the cover. Therefore, this method achieves quick assembly and disassembly of the cover and protective housing, simplifying the operation steps, avoiding complex procedures, reducing battery assembly time, and effectively improving the assembly efficiency and convenience of the battery pack. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a cross-sectional perspective view of the protective shell of this utility model.

[0026] Figure 3 This is a partial three-dimensional structural diagram of the movable block of this utility model;

[0027] Figure 4 This is a partial three-dimensional structural diagram of the support plate of this utility model;

[0028] Figure 5 This is a partial three-dimensional structural diagram of the cap of this utility model.

[0029] In the diagram: 1. Protective outer shell; 2. Support plate; 3. Cover; 4. Limiting block; 5. Movable block; 6. Rotating screw; 7. Guide shell; 8. Moving frame; 9. Abutting wheel; 10. Double-acting screw one; 11. Clamping plate one; 12. Double-acting screw two; 13. Clamping plate two; 14. Spring shock absorber one; 15. Shock-absorbing plate; 16. Positioning sealing ring; 17. Spring shock absorber two; 18. Pressure plate; 19. Thermally conductive copper sheet; 20. Housing; 21. Cooling fan. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] Example 1

[0032] Please see Figure 1 - Figure 5The present invention provides a protection device for a new energy vehicle battery pack, comprising: a protective shell 1;

[0033] A support plate 2 is fixedly installed inside the protective housing 1, and the support plate 2 is provided with a clamping assembly for fixing the battery pack;

[0034] A cover 3 is located on the top of the protective casing 1;

[0035] Two U-shaped limiting blocks 4 are symmetrically fixedly installed on the top of the cover 3, and the inner bottom wall of the limiting blocks 4 is inclined.

[0036] The movable blocks 5 are symmetrically connected to both sides of the protective shell 1;

[0037] A rotating screw 6 is rotatably connected to the movable block 5;

[0038] Two guide shells 7 are fixedly installed on one side of the movable block 5;

[0039] A movable frame 8 is threadedly connected to the surface of the rotating screw 6 and slides with the guide housing 7;

[0040] And an abutting wheel 9 that is rotatably connected to the end of the movable frame 8 and cooperates with the limiting block 4.

[0041] The technical solution provided in this embodiment is as follows: In use, the battery pack is placed on the support plate 2 inside the protective shell 1 and fixed by the clamping assembly. Then, the cover 3 is installed on the top of the protective shell 1, thereby protecting the battery pack through the protective shell 1 and the cover 3. Next, the movable block 5 is rotated to make the contact wheel 9 contact the cover 3. At the same time, the rotating screw 6 is rotated to move the moving frame 8 inside the guide shell 7, so that the contact wheel 9 rolls and enters the limiting block 4. After the contact wheel 9 enters the limiting block 4, it can be restrained by the inclined surface of the bottom wall of the limiting block 4. The position block 4 is in close contact with the contact wheel 9, and the inner top wall of the limiting block 4 limits the contact wheel 9, preventing the contact wheel 9 from separating from the limiting block 4 due to the reverse rotation of the movable block 5 caused by the contact force. This allows downward pressure to be applied to the cover 3 and the protective shell 1 to be fixed. Conversely, when disassembling the cover 3, simply reverse the screw 6 to separate the contact wheel 9 from the limiting block 4, and rotate the movable block 5 to disassemble the cover 3. Therefore, the cover 3 and the protective shell 1 can be quickly disassembled and assembled, simplifying the operation steps, avoiding complicated operation steps, reducing the battery assembly time, and effectively improving the assembly efficiency and convenience of the battery pack.

[0042] Furthermore, the clamping assembly includes a four-sided clamping mechanism disposed within the protective housing 1 for limiting the battery pack, and a shock-absorbing mechanism disposed on the four-sided clamping mechanism for buffering and damping the battery pack.

[0043] Specifically, by setting up a four-sided clamping mechanism, it is easy to clamp and fix the battery pack on all four sides. At the same time, when the battery pack is affected by vibration, the damping mechanism can buffer and reduce the vibration of the battery pack, thereby improving the protection effect of the battery pack.

[0044] Furthermore, the four-sided clamping mechanism includes a bidirectional screw 10 rotatably connected between the front and rear inner walls of the protective housing 1, two clamping plates 11 symmetrically threaded to the surface of the bidirectional screw 10 and slidably connected to the support plate 2, a bidirectional screw 12 rotatably connected between the left and right inner walls of the protective housing 1 and located below the bidirectional screw 10, and two clamping plates 13 symmetrically threaded to the surface of the bidirectional screw 12 and slidably connected to the support plate 2. One end of both the bidirectional screw 10 and the bidirectional screw 12 extends out of the protective housing 1.

[0045] Specifically, after the battery pack is placed on the support plate 2, the two clamping plates 11 are moved relative to each other by rotating the bidirectional screw 10. This causes the damping mechanism on the clamping plate 11 to come into contact with the battery pack, so as to clamp and fix the front and rear sides of the battery pack. Then, the two clamping plates 13 are moved relative to each other by rotating the bidirectional screw 12. This causes the damping mechanism on the clamping plate 13 to come into contact with the battery, so as to clamp and fix the left and right sides of the battery pack again, thereby achieving the effect of clamping and fixing the battery pack from multiple sides.

[0046] Furthermore, the damping mechanism includes multiple sets of spring dampers 14 fixedly installed on one side of clamping plate 11 and clamping plate 2 13, and a damping plate 15 fixedly installed on one end of the spring dampers 14, with a rubber pad installed on one side of the damping plate 15.

[0047] Specifically, when clamping plate 11 and clamping plate 13 move, they can drive the damping plate 15 to move synchronously, and make the damping plate 15 contact and fit against the side of the battery pack. At the same time, under the elastic force of spring damper 14, the damping plate 15 can tightly clamp and fix the battery pack. The spring damper 14 can buffer and dampen the vibration force on the battery pack, preventing the battery pack from being damaged by vibration and impact, thereby ensuring the protection effect of the battery pack.

[0048] Furthermore, the top of the protective shell 1 is provided with a positioning sealing groove, and the bottom of the cover 3 is fixedly installed with a positioning sealing ring 16 that engages with the positioning sealing groove. The positioning sealing ring 16 is made of rubber.

[0049] Specifically, by setting the positioning sealing ring 16, when the cover 3 is installed, the positioning sealing ring 16 can be inserted into the positioning sealing groove to position the installation position of the cover 3. At the same time, under the action of the positioning sealing ring 16, the sealing effect between the cover 3 and the protective shell 1 can be improved.

[0050] Furthermore, two sets of spring shock absorbers 17 are symmetrically fixedly installed at the bottom of the cover 3. A pressure plate 18 is fixedly connected to the bottom end of the spring shock absorber 17, and a gasket is installed at the bottom of the pressure plate 18.

[0051] Specifically, after the cover 3 is pressed and fixed, the pressing plate 18 can contact the battery pack and compress the spring shock absorber 17. The spring force of the spring shock absorber 17 makes the pressing plate 18 and the battery pack in close contact, so as to limit and fix the top of the battery pack. When the battery pack is vibrated, the spring shock absorber 17 can provide longitudinal shock absorption, thereby further enhancing the protection of the battery pack.

[0052] Example 2

[0053] Based on Embodiment 1, in this embodiment: a plurality of heat-conducting copper sheets 19 are installed through the top of the cover 3, and a housing 20 corresponding to the heat-conducting copper sheets 19 is fixedly installed on the top of the cover 3. A cooling fan 21 is fixedly installed on one side of the housing 20, and a ventilation hole is opened on the other side of the housing 20.

[0054] The technical solution provided in this embodiment is as follows: After the cover 3 and the protective shell 1 are pressed and fixed, the heat-conducting copper sheet 19 comes into contact with the battery pack. The heat-conducting copper sheet 19 can absorb the heat generated by the battery pack. At the same time, the cooling fan 21 blows air onto the heat-conducting copper sheet 19 to accelerate the airflow of the heat-conducting copper sheet 19, thereby facilitating the heat dissipation of the battery pack.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protection device for a new energy vehicle battery pack, characterized in that, include: Protective casing (1); A support plate (2) is fixedly installed inside the protective housing (1), and the support plate (2) is provided with a clamping assembly for fixing the battery pack; A cover (3) is provided on the top of the protective casing (1); Two U-shaped limiting blocks (4) are symmetrically fixedly installed on the top of the cover (3), and the inner bottom wall of the limiting blocks (4) is inclined. The movable blocks (5) are symmetrically connected to the two sides of the protective shell (1); A rotating screw (6) is rotatably connected to the movable block (5); Two guide shells (7) are fixedly installed on one side of the movable block (5); A movable frame (8) is threadedly connected to the surface of the rotating screw (6) and slides with the guide shell (7); And an abutting wheel (9) that is rotatably connected to the end of the movable frame (8) and cooperates with the limiting block (4).

2. The protection device for a new energy vehicle battery pack according to claim 1, characterized in that, The clamping assembly includes a four-sided clamping mechanism disposed within the protective housing (1) for limiting the battery pack, and a damping mechanism disposed on the four-sided clamping mechanism for buffering and shock absorption of the battery pack.

3. The protection device for a new energy vehicle battery pack according to claim 2, characterized in that, The four-sided clamping mechanism includes a bidirectional screw 1 (10) rotatably connected between the front and rear inner walls of the protective shell (1), two clamping plates 1 (11) symmetrically threaded on the surface of the bidirectional screw 1 (10) and slidably connected to the support plate (2), a bidirectional screw 2 (12) rotatably connected between the left and right inner walls of the protective shell (1) and located below the bidirectional screw 1 (10), and two clamping plates 2 (13) symmetrically threaded on the surface of the bidirectional screw 2 (12) and slidably connected to the support plate (2). One end of the bidirectional screw 1 (10) and the bidirectional screw 2 (12) both extend out of the protective shell (1).

4. The protection device for a new energy vehicle battery pack according to claim 3, characterized in that, The damping mechanism includes multiple sets of spring dampers (14) fixedly installed on one side of clamping plate one (11) and clamping plate two (13), and a damping plate (15) fixedly installed on one end of spring damper one (14), with a rubber pad installed on one side of the damping plate (15).

5. A protection device for a new energy vehicle battery pack according to claim 1, characterized in that, The top of the protective shell (1) is provided with a positioning sealing groove, and the bottom of the cover (3) is fixedly installed with a positioning sealing ring (16) that engages with the positioning sealing groove.

6. A protection device for a new energy vehicle battery pack according to claim 1, characterized in that, Two sets of spring shock absorbers (17) are symmetrically fixedly installed at the bottom of the cover (3), and a pressure plate (18) is fixedly connected to the bottom end of the spring shock absorber (17).

7. A protection device for a new energy vehicle battery pack according to claim 1, characterized in that, Multiple heat-conducting copper sheets (19) are installed through the top of the cover (3). A housing (20) corresponding to the heat-conducting copper sheets (19) is fixedly installed on the top of the cover (3). A cooling fan (21) is fixedly installed on one side of the housing (20), and a ventilation hole is opened on the other side of the housing (20).

Images